The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 31, 1995
Filed:
Sep. 08, 1994
Applicant:
Inventors:
Assignee:
Bayer Aktiengesellschaft, Leverkusen, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C09B / ; D06P / ;
U.S. Cl.
CPC ...
8531 ; 8550 ; 8623 ; 8626 ; 8628 ; 8629 ; 8662 ; 8675 ; 8685 ; 8907 ; 8924 ;
Abstract
The new process for dyeing polyamide fibers with acid dyestuffs, in which small amounts of metal salts are added to the dyebath, gives dyeings having improved lightfastness.